Gas in Washington averaged $2.71 in 2006 — $4.33 in today’s money
Average, that year
$2.71
In 2025 dollars
$4.33
The average price of a gallon of regular gasoline in Washington across 2006, shown both as it was at the pump and adjusted for inflation to constant 2025 dollars (CPI-U).
Across the year
How Washington prices moved through 2006
Weekly average for regular gasoline. The year’s high was $3.16 the week of May 22, 2006; the low was $2.15 the week of January 2, 2006 — a swing of 46.5%.
View the weekly data (52 weeks)
| Week of | Nominal | 2025 $ |
|---|---|---|
| January 2, 2006 | $2.15 | $3.48 |
| January 9, 2006 | $2.23 | $3.61 |
| January 16, 2006 | $2.26 | $3.66 |
| January 23, 2006 | $2.30 | $3.72 |
| January 30, 2006 | $2.32 | $3.75 |
| February 6, 2006 | $2.33 | $3.76 |
| February 13, 2006 | $2.30 | $3.71 |
| February 20, 2006 | $2.26 | $3.64 |
| February 27, 2006 | $2.25 | $3.63 |
| March 6, 2006 | $2.30 | $3.71 |
| March 13, 2006 | $2.39 | $3.85 |
| March 20, 2006 | $2.49 | $4.01 |
| March 27, 2006 | $2.56 | $4.12 |
| April 3, 2006 | $2.56 | $4.11 |
| April 10, 2006 | $2.67 | $4.29 |
| April 17, 2006 | $2.75 | $4.42 |
| April 24, 2006 | $2.89 | $4.64 |
| May 1, 2006 | $3.01 | $4.81 |
| May 8, 2006 | $3.09 | $4.94 |
| May 15, 2006 | $3.13 | $5.01 |
| May 22, 2006 | $3.16 | $5.05 |
| May 29, 2006 | $3.15 | $5.04 |
| June 5, 2006 | $3.13 | $5.00 |
| June 12, 2006 | $3.11 | $4.96 |
| June 19, 2006 | $3.07 | $4.89 |
| June 26, 2006 | $3.03 | $4.84 |
| July 3, 2006 | $3.03 | $4.81 |
| July 10, 2006 | $3.04 | $4.82 |
| July 17, 2006 | $3.04 | $4.83 |
| July 24, 2006 | $3.04 | $4.83 |
| July 31, 2006 | $3.03 | $4.81 |
| August 7, 2006 | $3.06 | $4.83 |
| August 14, 2006 | $3.08 | $4.87 |
| August 21, 2006 | $3.06 | $4.83 |
| August 28, 2006 | $3.03 | $4.78 |
| September 4, 2006 | $2.97 | $4.72 |
| September 11, 2006 | $2.92 | $4.63 |
| September 18, 2006 | $2.83 | $4.49 |
| September 25, 2006 | $2.75 | $4.36 |
| October 2, 2006 | $2.68 | $4.27 |
| October 9, 2006 | $2.60 | $4.14 |
| October 16, 2006 | $2.55 | $4.06 |
| October 23, 2006 | $2.51 | $4.00 |
| October 30, 2006 | $2.46 | $3.92 |
| November 6, 2006 | $2.44 | $3.88 |
| November 13, 2006 | $2.48 | $3.96 |
| November 20, 2006 | $2.55 | $4.06 |
| November 27, 2006 | $2.55 | $4.07 |
| December 4, 2006 | $2.57 | $4.08 |
| December 11, 2006 | $2.60 | $4.12 |
| December 18, 2006 | $2.63 | $4.16 |
| December 25, 2006 | $2.64 | $4.19 |
Year over year
How 2006 compares, adjusted for inflation
2006 was Washington’s 11th-most-expensive year for gas on record, adjusted for inflation — equivalently, the 14th-cheapest of 24 years (2003–2026).
Every grade
Washington fuel prices by grade in 2006
Year-average price per grade. Premium figures are the spread drivers paid for higher-octane fuel that year.
| Grade | Avg / gal | 2025 $ | vs. regular |
|---|---|---|---|
| Regular | $2.71 | $4.33 | — |
| Midgrade | $2.82 | $4.50 | +10.8¢ |
| Premium | $2.92 | $4.66 | +20.7¢ |
Common questions
Washington gas prices in 2006, answered
- What was the average price of gas in Washington in 2006?
- The average price of regular gasoline in Washington in 2006 was $2.71 per gallon — about $4.33 in 2025 dollars after adjusting for inflation, according to U.S. Energy Information Administration weekly data.
- How high did gas prices get in Washington during 2006?
- Washington's weekly average for regular gasoline peaked at $3.16 the week of May 22, 2006 and bottomed out at $2.15 the week of January 2, 2006 — a swing of 46.5% across the year.
- Were gas prices in Washington higher in 2006 than in 2005?
- Adjusted for inflation, regular gasoline in Washington was more expensive in 2006 than in 2005, up 10.9% year over year.
- How does 2006 rank for gas prices in Washington history?
- Adjusted for inflation, 2006 was the 11th-most-expensive year for regular gasoline in Washington out of the 24 years EIA has published weekly prices (2003–2026).